Scott Posted February 17, 2010 Share Posted February 17, 2010 I have been sorting out the spare room for the Baby and I went to take a couple of pics of it but found it very difficult to get anything into the picture. I was wondering if these lenses will be any good to help? I know the quality of the picture won't be the best, I'm not looking for anything spectacular just some nice pictures of the room so I was wondering if these would do the trick? Money is a bit tight at the mo and lenses are very low down on the priorities list. Cheers Quote Link to comment Share on other sites More sharing options...
Snooze Posted February 18, 2010 Share Posted February 18, 2010 These are converters, not lenses. What lens were you thinking of using them with? Quote Link to comment Share on other sites More sharing options...
Scott Posted February 18, 2010 Author Share Posted February 18, 2010 These are converters, not lenses. What lens were you thinking of using them with? Just the standard one, I think its 18-55? Quote Link to comment Share on other sites More sharing options...
Snooze Posted February 18, 2010 Share Posted February 18, 2010 Okay - so what these converters do is change the magnification of the lens you attach them to. There is a 0.45x converter and a 2x converter. So attaching the 0.45x converter to your 18-55mm makes it equivalent to a 8-20mm. Attaching the 2x converter to the 18-55mm makes it equivalent to a 36-110mm. So the 0.45 converter would be the one you're after for a wider-angle picture. At that size, it will add quite a bit of curvature to the picture (a so-called "fish-eye" view). The downside (of course there's always one!) is that you're putting extra glass and tubing in front of your lens, which means a lot less light will get into the camera - and the cheaper the converter the worse that's going to be, so expect these to only be useful in pretty bright, sunny days and with little to no movement in the pictures, and expect to end up with a slightly poorer quality image than without the converter. Also be wary of the impact on focusing - not sure how well these will play with the autofocus system. To be honest, I'm not convinced you're really going to achieve too much better than that you have already with an 18mm view. My suggestion for trying to capture a whole room would be getting up on a stepladder in one corner, taking multiple images and stitching them together. Quote Link to comment Share on other sites More sharing options...
JamesC Posted February 18, 2010 Share Posted February 18, 2010 I'd be interested to see some sample shots from these too. I've thought about getting one before but thought the quailty would be poor. I sometimes like the fisheye style for some car shots Quote Link to comment Share on other sites More sharing options...
Scott Posted February 18, 2010 Author Share Posted February 18, 2010 Okay - so what these converters do is change the magnification of the lens you attach them to. There is a 0.45x converter and a 2x converter. So attaching the 0.45x converter to your 18-55mm makes it equivalent to a 8-20mm. Attaching the 2x converter to the 18-55mm makes it equivalent to a 36-110mm. So the 0.45 converter would be the one you're after for a wider-angle picture. At that size, it will add quite a bit of curvature to the picture (a so-called "fish-eye" view). The downside (of course there's always one!) is that you're putting extra glass and tubing in front of your lens, which means a lot less light will get into the camera - and the cheaper the converter the worse that's going to be, so expect these to only be useful in pretty bright, sunny days and with little to no movement in the pictures, and expect to end up with a slightly poorer quality image than without the converter. Also be wary of the impact on focusing - not sure how well these will play with the autofocus system. To be honest, I'm not convinced you're really going to achieve too much better than that you have already with an 18mm view. My suggestion for trying to capture a whole room would be getting up on a stepladder in one corner, taking multiple images and stitching them together. Thanks for the info, exactly what I was looking for Quote Link to comment Share on other sites More sharing options...
Scott Posted February 20, 2010 Author Share Posted February 20, 2010 I took a quick couple of snaps to show the difference and also to try out the Macro filter. I can't believe how well this thing works for so little money, it is exactly what I was after. It isn't by any means for professional use but it is ideal for me. At 18mm you can just see the dark corners, moving it out a little takes them out of the picture while still showing more than 18mm does... or you can cut the corners. The following pics were taken at 55mm. Oh, and the autofocus seems to work just fine with both lenses. I was pleasantly surprised by this. Excuse the quality, I was only taking a couple of snaps to see what it did. [attach]105525[/attach] [attach]105526[/attach] [attach]105527[/attach] Quote Link to comment Share on other sites More sharing options...
colsoop Posted February 20, 2010 Share Posted February 20, 2010 What camera do you have ? Does it use the cropped sensor, as this makes a difference to lense focal length. Quote Link to comment Share on other sites More sharing options...
Scott Posted February 20, 2010 Author Share Posted February 20, 2010 What camera do you have ? Does it use the cropped sensor, as this makes a difference to lense focal length. I have no idea lol. It is the Canon 450D. Quote Link to comment Share on other sites More sharing options...
colsoop Posted February 20, 2010 Share Posted February 20, 2010 I have no idea lol. It is the Canon 450D. Its a nice little camera. It does have the cropped sensor so keep that in mind when you do decide to get new lenses in the future. Quote Link to comment Share on other sites More sharing options...
Scott Posted February 20, 2010 Author Share Posted February 20, 2010 Its a nice little camera. It does have the cropped sensor so keep that in mind when you do decide to get new lenses in the future. Ok dokey, what difference does it make to lens buying? So that I know what to look for Quote Link to comment Share on other sites More sharing options...
JamesC Posted February 20, 2010 Share Posted February 20, 2010 I took a quick couple of snaps to show the difference and also to try out the Macro filter. I can't believe how well this thing works for so little money, it is exactly what I was after. It isn't by any means for professional use but it is ideal for me. At 18mm you can just see the dark corners, moving it out a little takes them out of the picture while still showing more than 18mm does... or you can cut the corners. The following pics were taken at 55mm. Oh, and the autofocus seems to work just fine with both lenses. I was pleasantly surprised by this. Excuse the quality, I was only taking a couple of snaps to see what it did. [attach]105525[/attach] [attach]105526[/attach] [attach]105527[/attach] That looks perfectly acceptable to me. That would do me fine, like you i don't need professional quality. I take it it first image was taken with the new lens attached? Is it very 'fish-eyey' at 18mm? Quote Link to comment Share on other sites More sharing options...
Scott Posted February 20, 2010 Author Share Posted February 20, 2010 That looks perfectly acceptable to me. That would do me fine, like you i don't need professional quality. I take it it first image was taken with the new lens attached? Is it very 'fish-eyey' at 18mm? Not at all IMO, as I said the only thing I noticed was the corners. Will take a pic.... Quote Link to comment Share on other sites More sharing options...
Scott Posted February 20, 2010 Author Share Posted February 20, 2010 Here we go. I'm guessing the 0.25x would be more fisheyed. [attach]105528[/attach] [attach]105529[/attach] Quote Link to comment Share on other sites More sharing options...
JamesC Posted February 20, 2010 Share Posted February 20, 2010 Cheers Scott. I think i'll invest in one of these. Quote Link to comment Share on other sites More sharing options...
colsoop Posted February 21, 2010 Share Posted February 21, 2010 Ok dokey, what difference does it make to lens buying? So that I know what to look for It increases the focal length of the lens. So a 50mm will be 80mm. (focal length x 1.6) Although if the lens is an EFS lens then it is designed for the cropped sensor and will be the focal length stated. Quote Link to comment Share on other sites More sharing options...
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